Work Class 9 Notes | EduRev

Class 9 : Work Class 9 Notes | EduRev

 Page 1


Work  chapter for CBSE IV 
Prepared by 
Prof. Shishir Deshmukh
Page 2


Work  chapter for CBSE IV 
Prepared by 
Prof. Shishir Deshmukh
Work can be generally said to be Physical or Mental 
Initial Position Final Position
Man apply a force on trolley  change its position due to gain of energy by trolley
And Man losses energy 
Boy reading a book ,doing a mental work
Page 3


Work  chapter for CBSE IV 
Prepared by 
Prof. Shishir Deshmukh
Work can be generally said to be Physical or Mental 
Initial Position Final Position
Man apply a force on trolley  change its position due to gain of energy by trolley
And Man losses energy 
Boy reading a book ,doing a mental work
Scientifically Work is said to be Done when body is displace by the application of force, 
If body does not displace by the application of force ,No work done takes place.
A Man is pushing a trolley , trolley move forward
Work done takes place
Man lift the weight from ground to a height, work done by a man  
Page 4


Work  chapter for CBSE IV 
Prepared by 
Prof. Shishir Deshmukh
Work can be generally said to be Physical or Mental 
Initial Position Final Position
Man apply a force on trolley  change its position due to gain of energy by trolley
And Man losses energy 
Boy reading a book ,doing a mental work
Scientifically Work is said to be Done when body is displace by the application of force, 
If body does not displace by the application of force ,No work done takes place.
A Man is pushing a trolley , trolley move forward
Work done takes place
Man lift the weight from ground to a height, work done by a man  
Work
• Work is a  Product of Force and Displacement in the direction of force 
applied
• W = F x  S 
• Work is a Scalar Quantity.
Page 5


Work  chapter for CBSE IV 
Prepared by 
Prof. Shishir Deshmukh
Work can be generally said to be Physical or Mental 
Initial Position Final Position
Man apply a force on trolley  change its position due to gain of energy by trolley
And Man losses energy 
Boy reading a book ,doing a mental work
Scientifically Work is said to be Done when body is displace by the application of force, 
If body does not displace by the application of force ,No work done takes place.
A Man is pushing a trolley , trolley move forward
Work done takes place
Man lift the weight from ground to a height, work done by a man  
Work
• Work is a  Product of Force and Displacement in the direction of force 
applied
• W = F x  S 
• Work is a Scalar Quantity.
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Work Class 9 Notes | EduRev

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